nohamsue, I only found one article that stated the life expectancy of Moto G battery to be 2+ years. A lot of forums state to charge battery when showing 40% and remove from charger at 90% to extend battery life.

Below are some links that may be helpful info. to you on cell phone batteries. Good luck

I hope this helped you out, if so let me know by pressing the helpful button.

http://www.pcadvisor.co.uk/how-to/mobile...

http://www.wikihow.com/Make-Your-Cell-Ph...

http://www.pcadvisor.co.uk/how-to/mobile...